Windmill



(ModeL) 2 $heets--Sheet 1.

N. HOLMES. Windmill.

No. 234,188. Patented Nov 9,1880.

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Patented Nov. 9, 1880.

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MPETERS. PHOTO-LITHOGRAPHER. WASHINGTON D C.

UNET warns NELSON HOLMES, ()F YPSILANTI, MICHIGAN.

WINDMILL.

SPECIFICATION forming part of Letters Patent No. 234,188, dated November 9, 1880.

Application filed March 6, 1880.

To all whom it may concern Be it known that I, NELSON HOLMES, of Ypsilanti, in the county of Washtenaw and State of Michigan, have invented certain new and useful Improvements in Vindmills; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use it, reference being bad to the accompanying drawings, which form part of this specification.

The object of my invention is to provide certain improvements which combine to make a very simple, efficient, and desirable windmill. The prominent feature is the means whereby I am enabled to use a short pitman in actuatin g the mill-pole without causing any material amount of side friction to result therefrom, and also to reciprocate the mill-pole so nearly in a vertical line that it works in a small hole in the post and is attached to the pump-rod by a simplejoint.

Referring to the drawings, which represent so much of a windmill as is necessary to illustrate the invention, Figure l is a view in front and side perspective. Fig. 2 is a view, in elevation, of the side opposite to that shown in the preceding figure. Fig. 3 is a detail view in "ertical longitudinal section through the main rotary shaft and its journal-boxes. Fig. dis a detail transverse vertical section through one of said journal-boxes. Fig. 5 is a detail view, in vertical transverse section, of the turn-post, with its independent bearing-piece connected thereto. Fig. 6 is a detail view, in horizontal section, representing the manner of connecting the mill pole and pump-rod together by means of the spring-pressed bolt. Fig. 7 is a detail view of the rocking bearing of the pitman. Fig. Sis a detail view, in horizontal section through the rocking bearing of the pitman, in a plane which passes lengthwise through the pivot of said bearing. Fig. 9 is a view of a modification of this rocking hearing, wherein a roller is used. Fig. 10 is a view of still a different modification of the same rocking bearing.

The upper extremity of pitman A is longitudinally slotted, and in said slot is fitted the rocking bearing B by tongue-and-groove engagement. The mill-pole O is loosely con- (ModL-l.)

nected to the said upper end of the pitman by means of an eye, a, formed on the pole and fitted over a horizontal stud, b,whieh projects rearwardly from the pitman.

The rocking bearing is mounted on a pivot, c, which projects rearwardly from a horizontal arm, I), the latter being longitudinally slotted and secured to an upright, E, which extends from the turn-table F. A bolt, 11, passes through the slot 0 of the arm, and also through the longitudinal slot 0 of the upright, thereby permitting the rocking bearing to be adjusted both horizontally and vertically. Different modifications of this hearing are shown in the drawings, the one shown in Fig. 9 being a roller mounted on the horizontal pivot c, the one shown in Fig. 10 being a hub mounted on the said pivot, and provided with upper and lower arms in the same vertical plane, said arms respectively having sleeves through which the mill-pole works. These several forms of rocking hearing are given as illustrations of the principle involved, said principle ofconstruction permitting the employment of ashort pitinan without material side friction and maintaining the mill-pole nearly in a straight line of reciprocation.

The forward portion of the turn-table is provided with two independent metallic journalboxes,f, in which fit wood bearings g for the wheel-shaft G. A cap-plate, h, fits over the shaft at points above the journal-boxes, and also above the space formed between said boxes.

The rock-shaft H, to which the main vane L vis secured, is provided with a socket, a, connected to it. Within this socket fits the stem of a supplemental vane, M, and a fastening device, I), clamps the stem in position, so as to maintain the supplemental vane in a plane a little less than at right angles to the plane of the main vane, and tends to maintain the latter in upright position. The position of the supplemental vane is such that as the wind increases the force of the counterbalancing-weight is overcome. The supplemental vane is turned downward, and it turns rockshaft H, so that the main vane is turned from the vertical plane in which it is normally located. This causes the turn-table to correspondingly move, and the wheel is turned out of the eye of the wind. As the wind lessens the counterlmlaneing-we|ght causes the supplemental vane to move to an upright position, the main vane is brought into its normal vertical position, and the wheel is brought into the eye of the wind.

The tubular turn-post l is provided with an independent lu-aring-piece, 1), adapted to rotate as a single piece therewith. edge of the lwaring-piece is formed of a thickness greater than that of the wall of the turnpost.

Inasmuch as I intend to use gas-pipe for the turnpost. I desire to provide a bearingsurface greater than the edge of the pipe atfords. The bearing-piece provided has an annular shoulder, upon which the turn-post rests, and by making the lower edge of this piece of any desired thickness I obtain as broad a hearing as I may wish.

A bracket, It, secured to standard S, is provided with two holes, respectively, on both sides of the mill-pole. Brackets m, secured to opposite sides of the mill-pole, are provided with vertical rods 11, which pass through the holes in the standard-bracket. Spiral springs titted over said rods have their lower extremitiesrestingonthestandard-bracket. Theirupper extremities bear against nuts s, which are vertically adjustable on the rods 11. In this tnanner the weight of the. mill-pole with the pump-rod attached thereto is caused to fall on the springs and the pitman-connection is relieved from the heavy weight of the pump-rod, which it otherwise would have to hear.

The lowrr extremity of the mill-pole is provided with a longitudinal groove, I, in which fits the upper extremity of the pump-rod. It is further provided with a lateral easing, T, in which works a horizontal bolt, W. A spiral spring, 11', titted over the bolt, has its inner extremity connected to the latter, and its opposite extremity bears against the outer end of said lateral easing. This bolt engages with a hole, y, in the pump-rod when the latter is attached to the mill-pole, thereby locking the two together.

\Vhen it is desired to detach the pump-rod from the mill-polc the bolt is withdrawn from its engagement with the pump-rod, a catch, 3, on the handle of the bolt is engaged with the outer end ofthecasing in which the bolt works, and said bolt is thus maintained in unlocked position. lither one of or both the lockingbolt and hole in the pinup-rod are made taper' ing in sectional dimensions, so as to cause the parts to be united securely together and without liability to lost motion by use and wear.

In another application for United States Letters Patent on certain improvements in windmills, filed even date herewith, I show a pumphandlc dctachably connected to a pump-rod by means similar to the above for detachably connecting the mill-pole and pump-rod; hence I restrict this part of my invention to the specific combination of parts herein set forth.

The lower llaving fully described my invention, what; I claim as new, and desire to secure by Letters Patent, is-

I. In a windmill, the combination, with a pitman having one extremity connected to a rotary shaft and a rocking bearing to which its l opposite extremity is connected, of a windmill-pole having its upper extremity pivoted to that extremity of the pitman which is provided with a rocking bearing, substantially as i set forth.

; L. In a windmill, the combination, with a l pitman having one extremity connected to a rotary shaft and a rocking bearing to which i its opposite extremity is connected, of a windmill-pole whose upper extremity is pivoted to that extremity of the pitman which is provided with the rocking bearing, and adjusting mechanism which varies the vertical position of said rocking bearing, substantially as set forth. 3. In a windmill, the combination, with a windmill-pole and a pitman, ofa. rocking bearing with which the pole-connecting end of the pitman engages, said bearing being adapted to be horizontally adjusted, substantially as set forth.

4. In a windmill, the combination, with a wiudmillpole, a pitman, and a rocking bearing with which the pole-connecting end of the pitman engages, of an upright secured to the turn-table and fastening devices which connect the rocking bearing to said upright. substantially as set forth.

In a windmill, the combination, with a windmill-pole, a pitman, and a rocking bearing with which the pole-connecting end of the pitman engages, of an upright secured to the turn-table and provided with a longitudinal slot, a horizontal arm supporting the rocking bearing and provided with a longitudinal slot, and a fastening device which passes through the slots of said upright and arm, substantially as set forth.

6. In a windmill, the combination, with a tubular turn-post, of an independent; bearingpiece connected to its lower extremity and adapted to rotate as a single piece therewith, said beari ng-piece having its lower edge formed of a thickness greater than the thickness of the turn-post wall. substantially as set forth.

7. In a windmill, the combination, with a rock-shaft; provided with a main vane and a comiterbalance-arm, of a socket secured to the shaft, and a supplemental vane whose stem tits in the socket, and means for clamping the stem so as to maintain the supplemental vane in a plane a little less than at right angles to the plane of the main vane, substantially as set forth.

s. In a windmill, the combination, with a spring and means which connect; its lower end to the standard, of a device which connects the upper end of the spring to the windmill-pole, said parts being adapted to cause the weight of the windmill-pole with its attached pumprod to fall on the spring, substantially as set forth.

9. In a windmill, the combination, with a standard provided with a bracket and a spring which rests on the latter, of a bracket secured to the windmill-pole and a rod which extends upwardly therefrom, said spring being interposed between a nut adjustable on the upper end of the rod and the standard-bracket, substantially as set forth.

10. In a windmill, the combination, with a windmill-pole, whose lower end is provided with a longitudinal groove, a pump-rod whose upper end fits in the latter, and a casing se- NELSON HOLMES.

Witnesses SAML. W. PARSONS, SAMUEL GANFIELD. 

